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3
CM-CU1 Mains Controls & Indicators 1
The main panel of the
Commentator Unit is split
into two areas. At the top
are the mix output PPM
meter display, mix output
limiter active indicator and
the power indicator LED.
Below this are the main
commentator position
controls, with the TALKBACK
and ON AIR buttons located
towards the bottom.
ON AIR Button
The ON AIR button
routes the commentator
microphone input signal to
the Comm Output and to
the Mix Output. This button
has a latching action; press
to activate and press again
to deactivate. When the
On Air control is active, the
button illuminates red and
the corresponding open
collector driver output on
the GPIO port is activated.
The line input signal is
permanently routed to the
mix output by default.
CM-CU1 Main Panel Controls & Indicators
Fig 1-3: Top Panel View Of CM-CU1